Doffer.



B. A. PETERSON.

DOFFER.

APPLICATION FILED JAN. 6, 1912.

fiMZA/femon Patented Oct. 14, 1913.

2 SHEETS-SHEET l.

B. A. PETERSON.

DGPPER.

APPLICATION FILED JAN. 6, 1912.

Patented Oct. 14, 1913.

2 SHEETS-SHEET 2.

'Z/Jihess J."

are star as 'FFIQ BURT A. PETERSON, F ROCKFORD. ILLINOIS, ASSIGNOB TO HOWARD D. COLMA -N, LUTHER Ii, MILLER, AND HARRY A. SEVERSON, COPARTNERS DOING BUSINESS AT ROCKFORD, ILLINOIS, AS BARBER-COLMAN COMPANY.

norrnn.

Specification of Letters Patent.

Patented @rt. 14, 1913.

Application filed January 6, 1912. Serial No. 669,765.

To (1Z7 whom, it may concern:

Be it known that I, BURT A. Pn'rnnsox, a citizen of the United States, residing at Rockford, in the county of \Vinnebago and State of Illinois, have invented certain new devices are designed to operate in the vertical-plane of the row of spindles, with the center lines of said devices coinciding with the center lines of the spindles. In view'of the variable position of the row of spindles,

it is necessary to vary the position of the dofier with relation to the spindle rail and the rail or flange below it.

One object of this invention is to provide means for so adjusting the position of the doffenso that the. doffer may be used upon a number of spinning frames varying with respect to the location of the row of spindles.

Another object of the invention is to provide a doifer with guide means to facilitate the positioning of the dotfer upon spinning frames. 1

In theaccompanying drawings, Figure 1 is a fragmentalfront elevation of a 'doffer embodying the features of my invention. Fig. 1? is a view illustrating a means for 'varying the position of the dofi'er-supporting rail. Fig. 2 is a fragment-a1 side elevation of the doffer, showing it in operative relation to a spinning frame. Fig. 3 is a sectional view taken in the plane of dotted line 3 3 of Fig. 1. Fig. 4. is a section on line 4 4 of/ Fig. 3. Fig. 5 is a fragmental sectional view of a locking device.

Fig. 2 represents at A a transverse portion of a spinning frame, the ring rail being shown at 'B, a bobbin at G, the so-called laddenrail at'D', the spindle rail, or upper flange of the ladder rail at E, and the lower flange of the ladder rail at F.

The framework of the doifer may be of any suitable character. The form herein disclosed by way of example consists of an upper section which supports the operating mechanism (not shown) and a lower section which carries the receptacle (not shown) for doiied bobbins. The upper section comprises two tubular columns 1 rigidly united at their lower ends by a transverse bracket or frame-member 2.

3 is a downwardly-extending bracket fixed to the lower side of the frame-member 2.

The upper section is suspended upon the spinning frame byineans including a suitable number of grooved rollers-4 mounted upon a bar 5 attached to the frame-membcr 2, said rollers running upon a channelrail G fixed to the spinning frame adjacent to the spindle rail.

The channel rail G is secured in place by any suitable means, such as a suitable number of clips 11 attached to the rail G and sprung over the rail E. When the distance between the'center line of the row'of spindles and the front edge of the spindle rail E is less than the standard distance, a shim J of proper-thickness is placed between the front edge of said rail E and the part of the clip which engages the rail Gr. 3

Upon the bracket 3 is a roller Q arranged to bear against the forward edge of the rail F and thereby maintain the doifer in stable equilibrium and in vertical position. In order to compensate for variations in the position of the rail G in different spinning frames, I provide means for adjusting the position of the stabilizing roller 6. Herein I have shown the roller 6 as rotatably .mounted between a flange or collar 7 and a washer '8 on a vertical spindle 9. Said spindle extends through an opening 10 in a slide 11 and through a slot 12 in the portion 13 of the bracket 3. .The spindle 9 is I supported fromthe bracket-portion 13 by means of a nut 14 turned on the upper screw-threaded end of the spindle. A spring' ,15 tends-to move the slide 11, the spindle 9;

and the roller 6 forwardly. The means, hereinshown for moving the slide, spindle and roller in the opposite direction com- Ill prises a wedge-16 guided for movement in an opening 17 intersecting the slot 12 at right angles, said wedge lying between the spindle 9 and one wall of the guide opening 17.

In the form lltl'(,lll,Sll(lWll, the means for moving the wedge 16 consists of a lever,18 pivoted at the side of the dofi'er as at 19 on the bar 5, and a link 20 connecting the lever and the wedge. The wedge may be locked in adjusted position in any suitable way, as by means of a projection 21 on the lever 18 adapted to enter any one of a plurality of recesses 22 in a locking plate 2.3. The lever 18 possesses suflicient resiliency to retain the projection 21 in arecess 22 until the lever is forced to one side or the others The upper end of the lever is Within convenient reach of the operator.

The lower section of the dofler consists, in the example selected for illustration, of

a rigid frame-work comprising two columns 24 slidably mounted within the tubular columns 1, the lower ends of the columns 24 being connected by a bracket 25. To said bracket are fixed bars 26 forming a frame to receive and support a box (not shown) for the dofi'ed bobbins. The lower section of the doft'er is sup mrted upon the ,floor by suitable means such as rollers 27. The upper section may be moved with relation to the lower section by means of a rock shaft 28 supported in the frame-member2, a hand lever' 29 and a crank arm30 fixed to the shaft 28, and links 3]. connecting the lever and the crank arm with the bracket 25.

32 are two guide-plates or stopsfixedto and projectiln'g below the bar 5, the inner or rear faces'of the guide-plates being in the vertical plane of the groovesin the rollers 4. In placing the dofi'er in operative relation to the spinning frame, the upper section is raised by deprcssingthe hand lever 29 until the rollers 4 are above the horizontal plane of the rail G. The dofi'er is then pushed toward the spinning'frame until the guide-plates stop against the forward edge of the rail G, whereupon the operator lowers the upper section until the rollers 4 stand on said rail.

\Vh'en installing'the dofier in a spinning room, any required number of locking recesses 22-are drilled in the plate 23 in such locations as toprovide a proper-adjustment of the roller 6 for each frame on which the dofl er is to be used.

The dofi'e'r may be propelled along the spinning frame by any preferred means, as, for example, that shown in Patent No.

983,858, issued February 7, 1911, upon an application filed by Howard D. Colman and myself I claim as my invention:

1. In a dotfer, a dofl'er framework, supporting means on the framework, other supporting means on the framework below the first mentioned supporting means, means for adjusting thesecond mentioned supporting means, and a hand lever pivoted at the side of the dofi'er framework, and connected at its lower 'end to the adjusting means.

i 2. lit .adotl'er, a dofier framework, suspending means on the framework, stabilizmg means on theframework below the suspending means, means for adjusting the 'stabilizmg means, and a hand lever pivoted at the side of the doffer framework and connected to the adjusting means.

Tn a dotler, a dolfer framework, suspending means and stabilizing means on the framework, a wedge arranged to adjust the stabilizing means, and a hand lever mounted on the do'lfer framework and operatively connected to the wedge for moving the latter. 1 M I l 4.111 a dolfer, a framework c0n'1prisin an upper section and a lower "section slidably connected together; suspending means on'the upper section: stabilizing means on the upper section below the suspending means, and a hand lever pivoted on the upper section and connectedto the stabiliz ing means for adjusting the latter.

5. In a dofier, an upper section and a lower section 'slidably connected together, means for raising the upper section, a supporting roller on the upper section adapted to run upon a spinning-frame rail, and a (letter-positioning stop on the upper section below the roller a d in position to contact such a rail when he roller is properly positioned above the rail.

6. In a dofi'er, a dofi'er framework, suspending means and stabilizing means on the framework, means to adjust the stabilizing means, a hand lever pivot-ed at the side of the doifer framework and connected to the adjusting means for operating the latter, and means for locking-the hand lever in various positions.

in testimony whereof I aflix my signature in presence of two Witnesses.

BURT A. PETER SON. 

